diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_bios.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_bios.c | 58 |
1 files changed, 45 insertions, 13 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_bios.c b/drivers/gpu/drm/i915/display/intel_bios.c index 4716484af62d..4cc949b228f2 100644 --- a/drivers/gpu/drm/i915/display/intel_bios.c +++ b/drivers/gpu/drm/i915/display/intel_bios.c @@ -425,6 +425,7 @@ parse_lfp_backlight(struct drm_i915_private *dev_priv, const struct bdb_lfp_backlight_data *backlight_data; const struct lfp_backlight_data_entry *entry; int panel_type = dev_priv->vbt.panel_type; + u16 level; backlight_data = find_section(bdb, BDB_LVDS_BACKLIGHT); if (!backlight_data) @@ -459,14 +460,39 @@ parse_lfp_backlight(struct drm_i915_private *dev_priv, dev_priv->vbt.backlight.pwm_freq_hz = entry->pwm_freq_hz; dev_priv->vbt.backlight.active_low_pwm = entry->active_low_pwm; - dev_priv->vbt.backlight.min_brightness = entry->min_brightness; + + if (bdb->version >= 234) { + u16 min_level; + bool scale; + + level = backlight_data->brightness_level[panel_type].level; + min_level = backlight_data->brightness_min_level[panel_type].level; + + if (bdb->version >= 236) + scale = backlight_data->brightness_precision_bits[panel_type] == 16; + else + scale = level > 255; + + if (scale) + min_level = min_level / 255; + + if (min_level > 255) { + drm_warn(&dev_priv->drm, "Brightness min level > 255\n"); + level = 255; + } + dev_priv->vbt.backlight.min_brightness = min_level; + } else { + level = backlight_data->level[panel_type]; + dev_priv->vbt.backlight.min_brightness = entry->min_brightness; + } + drm_dbg_kms(&dev_priv->drm, "VBT backlight PWM modulation frequency %u Hz, " "active %s, min brightness %u, level %u, controller %u\n", dev_priv->vbt.backlight.pwm_freq_hz, dev_priv->vbt.backlight.active_low_pwm ? "low" : "high", dev_priv->vbt.backlight.min_brightness, - backlight_data->level[panel_type], + level, dev_priv->vbt.backlight.controller); } @@ -1602,7 +1628,9 @@ static u8 map_ddc_pin(struct drm_i915_private *dev_priv, u8 vbt_pin) const u8 *ddc_pin_map; int n_entries; - if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP) { + if (INTEL_PCH_TYPE(dev_priv) >= PCH_DG1) { + return vbt_pin; + } else if (INTEL_PCH_TYPE(dev_priv) >= PCH_ICP) { ddc_pin_map = icp_ddc_pin_map; n_entries = ARRAY_SIZE(icp_ddc_pin_map); } else if (HAS_PCH_CNP(dev_priv)) { @@ -1660,20 +1688,18 @@ static enum port dvo_port_to_port(struct drm_i915_private *dev_priv, [PORT_I] = { DVO_PORT_HDMII, DVO_PORT_DPI, -1 }, }; /* - * Bspec lists the ports as A, B, C, D - however internally in our - * driver we keep them as PORT_A, PORT_B, PORT_D and PORT_E so the - * registers in Display Engine match the right offsets. Apply the - * mapping here to translate from VBT to internal convention. + * RKL VBT uses PHY based mapping. Combo PHYs A,B,C,D + * map to DDI A,B,TC1,TC2 respectively. */ static const int rkl_port_mapping[][3] = { [PORT_A] = { DVO_PORT_HDMIA, DVO_PORT_DPA, -1 }, [PORT_B] = { DVO_PORT_HDMIB, DVO_PORT_DPB, -1 }, [PORT_C] = { -1 }, - [PORT_D] = { DVO_PORT_HDMIC, DVO_PORT_DPC, -1 }, - [PORT_E] = { DVO_PORT_HDMID, DVO_PORT_DPD, -1 }, + [PORT_TC1] = { DVO_PORT_HDMIC, DVO_PORT_DPC, -1 }, + [PORT_TC2] = { DVO_PORT_HDMID, DVO_PORT_DPD, -1 }, }; - if (IS_ROCKETLAKE(dev_priv)) + if (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) return __dvo_port_to_port(ARRAY_SIZE(rkl_port_mapping), ARRAY_SIZE(rkl_port_mapping[0]), rkl_port_mapping, @@ -1889,7 +1915,7 @@ parse_general_definitions(struct drm_i915_private *dev_priv, expected_size = 37; } else if (bdb->version <= 215) { expected_size = 38; - } else if (bdb->version <= 229) { + } else if (bdb->version <= 237) { expected_size = 39; } else { expected_size = sizeof(*child); @@ -2638,10 +2664,16 @@ enum aux_ch intel_bios_port_aux_ch(struct drm_i915_private *dev_priv, aux_ch = AUX_CH_B; break; case DP_AUX_C: - aux_ch = IS_ROCKETLAKE(dev_priv) ? AUX_CH_D : AUX_CH_C; + /* + * RKL/DG1 VBT uses PHY based mapping. Combo PHYs A,B,C,D + * map to DDI A,B,TC1,TC2 respectively. + */ + aux_ch = (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) ? + AUX_CH_USBC1 : AUX_CH_C; break; case DP_AUX_D: - aux_ch = IS_ROCKETLAKE(dev_priv) ? AUX_CH_E : AUX_CH_D; + aux_ch = (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) ? + AUX_CH_USBC2 : AUX_CH_D; break; case DP_AUX_E: aux_ch = AUX_CH_E; |